Detected PFAS

PFAS in Medical Lake, WA Drinking Water

Q: Is pfas in Medical Lake water safe?

PFAS was detected in Medical Lake water at 0.0061 ppt, below the EPA limit of 4 ppt (PFOA/PFOS individually). Check ZIP-level data on this page for your specific area.

Q: How much pfas is in Medical Lake water?

The maximum detected level of pfas in Medical Lake water is 0.0061 ppt. The EPA limit is 4 ppt (PFOA/PFOS individually). See the ZIP code table above for area-specific levels.

PFAS data for Medical Lake, Washington · 9,398 residents · 1 ZIP code

ZipCheckup's reading of PFAS in Medical Lake, Washington: the highest detected level is 0.0061 ppt; the EPA limit is 4 ppt (PFOA/PFOS individually). PFAS carries a high health-risk designation.

Not every city shows PFAS in its water data; in Medical Lake, Washington, federal sampling has confirmed its presence at detectable levels in at least one recent reporting cycle.

0.0061 ppt

Max Level Detected

7 ppt

Average Level

4 ppt (PFOA/PFOS individually)

EPA MCL

High

Health Risk

Reverse Osmosis or Granular Activated Carbon

Best Filter Method

Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-07-13

PFAS in Medical Lake Tap Water

PFAS has been detected in Medical Lake, Washington drinking water at a maximum level of 0.0061 detections — relative to the EPA MCL of 4 ppt (PFOA/PFOS individually).

This analysis covers 9,398 residents across 1 ZIP code in Medical Lake.

Medical Lake's overall water quality grade is B (70/100).

Is PFAS in Medical Lake Water Safe?

PFAS was detected in Medical Lake water but currently falls within EPA limits. However, some health organizations argue the EPA MCL may not be protective enough.

If you are concerned, a reverse osmosis or granular activated carbon filter can reduce pfas levels further.

PFAS Levels by ZIP Code

ZIP Code	PFAS Level	EPA Limit	Status
99022	7 detections	4 ppt (PFOA/PFOS individually)	Not comparable

Average pfas level across Medical Lake: 7 ppt

Health Effects of PFAS

Increased risk of kidney and testicular cancer
Thyroid disease and immune system suppression
Reproductive problems and reduced fertility
Elevated cholesterol and liver effects
Developmental effects in infants and children

Health risk severity: High. Governed by the PFAS National Primary Drinking Water Regulation (2024).

How PFAS Gets Into Drinking Water

Firefighting foam (AFFF) used at military bases and airports
Industrial manufacturing (non-stick coatings, stain-resistant fabrics)
Wastewater treatment plants that receive industrial discharge
Landfill leachate from PFAS-containing consumer products

What to Do About PFAS in Medical Lake Water

Install a reverse osmosis system (most effective — removes 90%+ of PFAS)
Granular activated carbon (GAC) filters remove some PFAS compounds
Look for NSF 53 or NSF 58 certification specifically tested for PFAS
Pitcher filters with activated carbon provide partial reduction

Look for filters certified under NSF 53 / NSF 58 for pfas removal.

Home → Contaminants → PFAS → Washington → Medical Lake

How to cite this page

APA ZipCheckup. (2026). PFAS in Medical Lake, WA Drinking Water. https://zipcheckup.com/contaminants/pfas/medical-lake-wa/

BibTeX

@misc{zipcheckup-contaminants-pfas-medical-lake-wa,
  author = {{ZipCheckup}},
  title  = {{PFAS in Medical Lake, WA Drinking Water}},
  year   = {2026},
  url    = {https://zipcheckup.com/contaminants/pfas/medical-lake-wa/}
}

Data as of July 2026.